Vibrator



FIG. 1 is a perspective view of the vibrator of the present invention;

FIG. 2 is a front elevation view thereof, the left side, right side and rear elevation views being identical thereto;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a vibrator, as shown and described. 